Some things can't be fixed, the transactions/second is one of them. The block size limit is a fixed economic resource just like the number of coins and it wouldn't be bitcoin anymore if it is changed in any way.

If that happens it would turn out to be a tie, the longest chain would be in the new system but if the transactions aren't verified what good would it be? If the pool ops do that they risk destroying Bitcoins utility.And Nodes can enforce the block size limit more easily than for example the number of coins since well in order to fill the blocks it takes transactions. Where are the mass of transactions come from?